Swimming pool lights

One of two lights in our pool is not working presumably because the bulb is used up. It is towards the top but under water. Please can anybody tell me if I will have to drain the pool till below the bulb line in order to change the bulb?

Thanking you in advance for any replies.

You do not have to drain the pool. Pool lights normally have a length of cable wrapped around the rear of the plastic casing in order to facilitate the changing of the light bulbs at the side of the pool.

Its depends what type of light fitting you have fitted in your pool there are ones that require the water drained below the light so as to change the build this is the type I've got in my pool.

I agree with Trevor52, you rarely need to drain the pool as there should be enough cable to get the light onto the coping stones of the pool.
99% of pools have either one or the other of the two main types of light. One type is dished into the pool wall and has a sealed beam headlamp, similar to those fitted in old cars. These lamps are sold in electrical wholesalers and pool shops. The other type of light is mounted flat onto the pool wall, hanging on a bracket and has a small halogen two-pin bulb inside. These bulbs are sold in ferreterias.
Before taking the light out of the pool, I always check with a multi meter whether the transformer is sending 12v current to the lamp. (Sometimes with two lights there are two transformers and one is defective).
Geoff.

Many thanks for your comments.